CN114123932A - Motor control system - Google Patents
Motor control system Download PDFInfo
- Publication number
- CN114123932A CN114123932A CN202010894876.0A CN202010894876A CN114123932A CN 114123932 A CN114123932 A CN 114123932A CN 202010894876 A CN202010894876 A CN 202010894876A CN 114123932 A CN114123932 A CN 114123932A
- Authority
- CN
- China
- Prior art keywords
- module
- control system
- motor control
- motor
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
Abstract
The invention relates to the field of motor control, in particular to a motor control system. The motor control system according to the present invention includes: a position decoding module configured to convert a position signal fed back by the position sensor into a digital signal; a servo control module configured to control motor operation based on command requirements from an upper computer and digital signals received from the position decoding module; a high voltage isolation and power drive module configured to be connected between the servo control module and a power output module for electrical isolation between high and low voltages and driving of the power output module; the current sampling and feedback module is configured to be connected with the servo control module, collect the current of each phase and the bus of the motor control system and transmit the collected current to the servo control module; and a switching power supply module configured to power the servo control module and the high voltage isolation and power drive module on the high and low voltage sides.
Description
Technical Field
The invention relates to the field of motor control, in particular to a motor control system.
Background
With the rapid development of electronic information technology, various single-core or multi-core processor chips such as MCUs, DSPs, etc. are layered endlessly, and the computing processing capability of electronic computers is greatly improved compared with the prior art, and the loading capability of power components is also continuously improved. The same power device, control processor or position decoding device can be suitable for motor control of different power grades and different voltage grades.
Conventional motor controllers are developed today in such a way that the corresponding controllers are specifically designed for different motors. The design method has great disadvantages, such as poor universality of the motor controller, and repeated design of a plurality of electronic components, thereby causing resource waste.
Based on the disadvantages, a motor control system with strong universality is significant.
Disclosure of Invention
To overcome one or more of the above disadvantages, the present invention provides the following technical solutions.
According to a first aspect of the present invention, there is provided a motor control system comprising: a position decoding module configured to convert a position signal fed back by the position sensor into a digital signal; a servo control module configured to control motor operation based on command requirements from an upper computer and digital signals received from the position decoding module; a high voltage isolation and power drive module configured to be connected between the servo control module and a power output module for electrical isolation between high and low voltages and driving of the power output module; the current sampling and feedback module is configured to be connected with the servo control module, collect the current of each phase and the bus of the motor control system and transmit the collected current to the servo control module; and a switching power supply module configured to power the servo control module and the high voltage isolation and power drive module on the high and low voltage sides.
According to an embodiment of the present invention, the motor control system further includes a communication unit module configured to be connected between the servo control module and the upper computer to provide a communication connection between the servo control module and the upper computer, and convert a signal generated by the servo control module into a signal received by the upper computer.
A motor control system according to another embodiment of the invention or any of the embodiments above, wherein the position decoding module is further configured to decode one or more of the following position signals fed back by the position sensor: resolver signals, hall signals, and photoelectric coded signals.
A motor control system according to another embodiment of the invention or any of the embodiments above, wherein the motor control system further comprises a power output module configured to be connected between the high voltage isolation and power drive module and a motor and to drive the motor to operate.
A motor control system according to another embodiment of the invention or any of the embodiments above, wherein the power output module contains one or more power levels and voltage levels and is configured to select the respective power level and voltage level based on actual operating conditions.
According to another embodiment of the invention or any of the above embodiments of the invention, the high voltage isolation and power driving module and the current sampling and feedback module thereof are selected to meet the respective voltage class and power driving class based on actual conditions.
A motor control system in accordance with another embodiment of the present invention or any one of the above embodiments, wherein the switching power supply module has an isolated power supply function configured to provide various levels of voltage based on circuit conditions.
A motor control system according to another embodiment of the invention or any of the embodiments above, wherein one or more of the following modules are configured to have different numbers depending on the motor control system's requirements for different control performance: the device comprises a communication unit module, a position decoding module, a high-voltage isolation and power driving module, a switching power supply module, a power output module and a motor.
A motor control system according to another embodiment of the invention or any of the above embodiments, wherein the motor control system is compatible with the following communication modes of motor control: LIN, CAN, RS422, RS485 and RS 232.
According to another embodiment of the invention or any of the above embodiments, the motor control system is compatible with the following position detection modes of motor control: non-inductive detection, hall position detection, resolver detection, and photoelectric encoder detection.
According to the invention, the motor control system can be adopted, different functional modules are combined based on different requirements of motor control, and a communication interface with strong universality is used among the functional modules, so that the universality of the motor control system is improved, and the waste of electronic device resources is avoided.
Other features and advantages of the methods and systems of the present invention will be more particularly apparent from or elucidated with reference to the drawings described herein, and the following detailed description of the embodiments used to illustrate certain principles of the invention.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the following description of the various aspects taken in conjunction with the accompanying drawings, in which like or similar elements are designated with like reference numerals. The drawings comprise:
FIG. 1 is a schematic diagram of a motor control system according to one embodiment of the present invention.
Fig. 2 is a schematic diagram of a motor control system according to another embodiment of the present invention.
Detailed Description
In this specification, the invention is described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. The embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Words such as "comprising" and "comprises" mean that, in addition to having elements or steps which are directly and explicitly stated in the description, the solution of the invention does not exclude other elements or steps which are not directly or explicitly stated. Terms such as "first" and "second" do not denote an order of the elements in time, space, size, etc., but rather are used to distinguish one element from another.
The present invention is described below with reference to flowchart illustrations, block diagrams, and/or flow diagrams of methods and systems according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block and/or flow diagram block or blocks.
These computer program instructions may be stored in a computer-readable memory that can direct a computer or other programmable processor to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer program instructions may be loaded onto a computer or other programmable data processor to cause a series of operational steps to be performed on the computer or other programmable processor to produce a computer implemented process such that the instructions which execute on the computer or other programmable processor provide steps for implementing the functions or acts specified in the flowchart and/or block diagram block or blocks. It should also be noted that, in some alternative implementations, the functions/acts noted in the blocks may occur out of the order noted in the flowcharts. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
FIG. 1 is a schematic diagram of a motor control system according to one embodiment of the present invention.
As shown in fig. 1, the motor control system 10 includes: a position decoding module 110 configured to convert the position signal fed back by the position sensor into a digital signal; a servo control module 120 configured to control motor operation based on command requirements from an upper computer and digital signals received from the position decoding module 110; a communication unit module 130 configured to be connected between the servo control module 120 and the upper computer to provide a communication connection for the servo control module 120 and the upper computer, and to convert a signal generated by the servo control module 120 into a signal received by the upper computer; a high voltage isolation and power driving module 140 configured to be connected between the servo control module 120 and the power output module 160 for electrical isolation between high and low voltages and driving of the power output module 160; a switching power supply module 150 configured to supply power to the servo control module 120 and the high voltage isolation and power driving module 140 on the high and low voltage sides; a power output module 160 configured to be connected between the high voltage isolation and power driving module 140 and a motor and drive the motor to operate; and a current sampling and feedback module configured to be connected to the servo control module 120, collect the current of each phase and the bus of the motor control system 10, and transmit the collected current to the servo control module 120.
Alternatively, the servo control module 120 may be configured to communicate with the upper computer and receive the motor position resolved by the position decoding circuit 110 to determine the required output PWM waveform according to the instruction request from the upper computer and the current motor position resolved by the position decoding circuit 110. Optionally, the servo control module 120 is configured with a function of resolver soft solution calculation; when the position sensing-free control is required, the position sensing-free control is configured with a position resolving-free function. Alternatively, the servo control module 120 may include various operation levels and may include various operation modules for motor control, such as an MCU, a DSP, an SOC, and the like.
Alternatively, the position decoding module 110 may be configured to resolve all motor position sensor signals, such as resolver signals, hall signals, photoelectric coded signals, etc., which may be specific to a certain position sensor or a combination of several different sensors, and the position decoding module 110 may be eliminated when the motor is not in position sensing control.
Optionally, the high voltage isolation and power driving module 140 and the current sampling and feedback module thereof that meet the corresponding voltage class and power driving class are selected based on actual conditions to improve the versatility of the motor control system 10.
Optionally, the switching power supply module 150 has an isolated power supply function configured to provide various levels of voltage based on circuit conditions.
Optionally, power output module 160 contains one or more power levels and voltage levels and is configured to select the respective power level and voltage level based on actual operating conditions. The power output module 160 is divided into corresponding power classes and voltage class ranges according to the current and voltage parameters of the power output module 160, so as to cover the power requirements of the common motors.
Optionally, the motor control system 10 is compatible with the following communication modes of motor control: LIN, CAN, RS422, RS485, RS232 and other communication transmission modes, and the following position detection modes compatible with motor control: non-inductive detection, Hall position detection, resolver detection (soft solution and hard solution modes), photoelectric encoder detection and other position detection modes. The versatility of the motor control system 10 is improved by being compatible with various communication modes and position detection modes of motor control.
Optionally, one or more of the following modules are configured to have different numbers depending on the need for different control capabilities by the motor control system 10: a position decoding module 110, a communication unit module 130, a high voltage isolation and power drive module 140, a switching power supply module 150, a power output module 160, and a motor. Specifically, different sensors of the position decoding module 110, different communication means of the communication unit module 130, different isolation voltage levels of the high voltage isolation and power driving module 140, different output voltage levels of the switching power supply module 150, and different power levels of the power output module 160 may be employed for different motors.
By way of example, the motor control system 10 described above may be implemented as a schematic diagram of a motor control system according to another embodiment of the invention shown in fig. 2.
As shown in fig. 2, the motor control system 20 includes: a position decoding module 210 configured to convert the position signal fed back by the position sensor into a digital signal; a servo control module 220 configured to control motor operation based on command requirements from an upper computer and digital signals received from the position decoding module 210; a communication unit module 230 configured to be connected between the servo control module 220 and the upper computer to provide a communication connection for the servo control module 220 and the upper computer, and to convert a signal generated by the servo control module 220 into a signal received by the upper computer; a high voltage isolation and power driving module 240 configured to be connected between the servo control module 220 and a power output module 260 for electrical isolation between high and low voltages and driving of the power output module 260; a switching power supply module 250 configured to supply power to the servo control module 220 and the high voltage isolation and power driving module 240 on the high and low voltage sides; a power output module 260 configured to be connected between the high voltage isolation and power driving module 240 and a motor and to drive the motor to operate; and a current sampling and feedback module configured to be connected to the servo control module 220, collect the current of each phase and the bus of the motor control system 20, and transmit the collected current to the servo control module 220.
As shown in fig. 2, the combination between the above modules may be implemented in various ways: the mode can be a one-to-two, one-to-three … one-to-three combination; when the operation performance of the motor control system 20 needs to be improved, the mode can be a combination of two-to-one, three-to-one and … many-to-one; when the control performance of the motor control system 20 and the number of driving motors are both large, the mode can be a two-to-two, two-to-three … many-to-many combination; and when a certain aspect of the control of the motor control system 20 requires high performance, the capability of controlling the certain aspect may be separately enhanced, for example, the requirement on the number of communication paths is high, and the motor control system 20 may add corresponding communication unit modules, thereby meeting the requirement of the motor control system 20. For example, the motor control system 20 may be implemented such that one servo control module 220 controls a plurality of motor bodies. Alternatively, the servo control module 220 may include various operation levels and may include various operation modules for motor control, such as an MCU, a DSP, an SOC, and the like.
According to the motor control system, the motor controller is divided into different functional modules, the functional modules are connected through interfaces with strong universality, and the control requirements of different motors are met by using the same control module through modularization, so that the universality of the motor controller is improved, and the resource waste caused by repeated design of electronic components is avoided.
The embodiments and examples set forth herein are presented to best explain the embodiments in accordance with the present technology and its particular application and to thereby enable those skilled in the art to make and utilize the invention. However, those skilled in the art will recognize that the foregoing description and examples have been presented for the purpose of illustration and example only. The description as set forth is not intended to cover all aspects of the invention or to limit the invention to the precise form disclosed.
Claims (10)
1. A motor control system, comprising:
a position decoding module configured to convert a position signal fed back by the position sensor into a digital signal;
a servo control module configured to control motor operation based on command requirements from an upper computer and digital signals received from the position decoding module;
a high voltage isolation and power drive module configured to be connected between the servo control module and a power output module for electrical isolation between high and low voltages and driving of the power output module;
the current sampling and feedback module is configured to be connected with the servo control module, collect the current of each phase and the bus of the motor control system and transmit the collected current to the servo control module; and
a switching power supply module configured to power the servo control module and the high voltage isolation and power drive module on a high and low voltage side.
2. The motor control system of claim 1, further comprising a communication unit module configured to be connected between the servo control module and the host computer to provide a communication connection for the servo control module and the host computer and to convert signals generated by the servo control module into signals received by the host computer.
3. The motor control system of claim 1, wherein the position decoding module is further configured to decode one or more of the following position sensor feedback position signals: resolver signals, hall signals, and photoelectric coded signals.
4. The motor control system of claim 1, further comprising a power output module configured to be connected between the high voltage isolation and power drive module and a motor and to drive the motor in operation.
5. The motor control system of claim 4, wherein the power output module contains one or more power levels and voltage levels and is configured to select the respective power level and voltage level based on actual operating conditions.
6. The motor control system of claim 1 wherein said high voltage isolation and power drive module and said current sampling and feedback module thereof are selected to meet respective voltage and power drive ratings based on actual operating conditions.
7. The motor control system of claim 1, wherein the switching power supply module has an isolated power supply function configured to provide various levels of voltage based on circuit conditions.
8. A motor control system according to any of claims 1-7, wherein one or more of the following modules are configured to have different numbers depending on the motor control system's need for different control capabilities: the device comprises a communication unit module, a position decoding module, a high-voltage isolation and power driving module, a switching power supply module, a power output module and a motor.
9. The motor control system of claim 1, wherein the motor control system is compatible with motor control with the following communication: LIN, CAN, RS422, RS485 and RS 232.
10. The motor control system of claim 1, wherein the motor control system is compatible with the following motor controlled position sensing: non-inductive detection, hall position detection, resolver detection, and photoelectric encoder detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894876.0A CN114123932A (en) | 2020-08-31 | 2020-08-31 | Motor control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894876.0A CN114123932A (en) | 2020-08-31 | 2020-08-31 | Motor control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114123932A true CN114123932A (en) | 2022-03-01 |
Family
ID=80359695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010894876.0A Pending CN114123932A (en) | 2020-08-31 | 2020-08-31 | Motor control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114123932A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389684A (en) * | 2012-05-09 | 2013-11-13 | 周立纯 | Multifunctional double-shaft servo driver |
| CN105320039A (en) * | 2015-11-10 | 2016-02-10 | 中国电子科技集团公司第二十一研究所 | Scara servo control system |
| CN106655973A (en) * | 2017-01-05 | 2017-05-10 | 华北电力大学 | DSP-based design of SVPWM motor control device |
| CN108566125A (en) * | 2018-06-14 | 2018-09-21 | 杭州贝格达自动化技术有限公司 | Three axis servo-driver of integrated form |
-
2020
- 2020-08-31 CN CN202010894876.0A patent/CN114123932A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389684A (en) * | 2012-05-09 | 2013-11-13 | 周立纯 | Multifunctional double-shaft servo driver |
| CN105320039A (en) * | 2015-11-10 | 2016-02-10 | 中国电子科技集团公司第二十一研究所 | Scara servo control system |
| CN106655973A (en) * | 2017-01-05 | 2017-05-10 | 华北电力大学 | DSP-based design of SVPWM motor control device |
| CN108566125A (en) * | 2018-06-14 | 2018-09-21 | 杭州贝格达自动化技术有限公司 | Three axis servo-driver of integrated form |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109600075B (en) | Multi-axis servo drive controller based on multiprocessor system-on-chip | |
| US8736217B2 (en) | Servo motor control device for controlling servo motor configured to drive feed axis of machine tool | |
| CN113014152B (en) | Dual-motor control system and method | |
| US9300231B2 (en) | Output control apparatus of a motor and method for controlling a controller of the same | |
| CN110687843B (en) | Multi-shaft multi-motor servo device based on ZYNQ and control method thereof | |
| CN110936821B (en) | Automobile motor controller, control system and automobile | |
| GB2391076A (en) | Servo control device | |
| KR20130092374A (en) | Actuator control system and actuator system | |
| CN114123932A (en) | Motor control system | |
| CN104796046A (en) | Semiconductor device and driving apparatus | |
| US7339334B2 (en) | Real-time responsive motor control system | |
| CN108052039A (en) | Steering engine for unmanned plane control system | |
| CN113120071B (en) | Electric power steering control system | |
| CN110649841B (en) | Integrated control device, system and method based on system of magnetic bearing and motor | |
| CN107171605A (en) | A kind of conductings of BLDCM bis- or two and three or three conducting switching methods | |
| CN110994930B (en) | Double-sensing limited-angle brushless direct current torque motor and control method thereof | |
| CN104881024B (en) | Manual and remote control and control method peculiar to vessel | |
| CN111025007B (en) | Power supply voltage detection method and device and storage medium | |
| CN211086951U (en) | Electric steering engine signal acquisition system and electric steering engine digital controller | |
| CN210142268U (en) | Orthogonal encoder selective distribution system and orthogonal encoder selective distribution device | |
| CN105259968A (en) | Wide voltage output parallel flexible switching device and switching method thereof | |
| CN102707752A (en) | Multifunctional moment loading controller | |
| CN213735497U (en) | Unmanned ship accelerator and forward and reverse linkage control device and unmanned ship | |
| CN214756126U (en) | Small-size digital DC brushless motor drive circuit | |
| CN212012504U (en) | Multi-control servo control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |